The much-anticipated Coinbase direct listing is poised to make co-founder and CEO Brian Armstrong a very wealthy man. At the latest valuation, Armstrong's stake in the company is worth $13.6 billion—which would leave him in the company of recent tech founders like Zoom's Eric Yuan at $16 billion, Twitter's Jack Dorsey at $13 billion dollars, and Shopify's Evan Spiegel at $10 billion in net worth.